Allodidymocodium Yamaguti, 1970 (identification resource)
Allonematobothriini Pozdnyakov, 1993 (identification resource)
Allonematobothrium Yamaguti, 1965 (identification resource)
Coeliotrematini Pozdnyakov, 1993 (identification resource)
Colocyntotrema Yamaguti, 1951 (identification resource)
Colocyntotrematini Yamaguti, 1958 (identification resource)
Didymocystis Ariola, 1902 (identification resource)
Didymodiclininae Pozdnyakov, 1993 (identification resource)
Didymodiclinus Pozdnyakov, 1993 (identification resource)
Didymosulcus Pozdnyakov, 1990 (identification resource)
Didymozoidae Monticelli, 1888 (identification resource)
Didymozoinae Monticelli, 1888 (identification resource)
Didymozoini Monticelli, 1888 (identification resource)
Didymozoon Taschenberg, 1879 (identification resource)
Gonapodasmiinae Ishii, 1935 (identification resource)
Gonapodasmiini Ishii, 1935 (identification resource)
Gonapodasmius Ishii, 1935 (identification resource)
Helicodidymozoon Anderson & Cribb, 1994 (identification resource)
Indodidymozoon Madhavi, 1982 (identification resource)
Koellikeria Cobbold, 1860 (identification resource)
Koellikeriinae Ishii, 1935 (identification resource)
Koellikeriini Ishii, 1935 (identification resource)
Koellikerioides Yamaguti, 1970 (identification resource)
Lobatozoum Ishii, 1935 (identification resource)
Maccallozoum Ishii, 1935 (identification resource)
Metadidymocystiini Pozdnyakov, 1993 (identification resource)
Metanematobothrium Yamaguti, 1938 (identification resource)
Nematobothriinae Ishii, 1935 (identification resource)
Nematobothriini Ishii, 1935 (identification resource)
Nematobothrium van Beneden, 1858 (identification resource)
Neometadidymozoon Yamaguti, 1971 (identification resource)
Oesophagocystis Yamaguti, 1970 (identification resource)
Paragonapodasmius Yamaguti, 1938 (identification resource)
Wedlia Cobbold, 1860 (identification resource)
Wedliini Pozdnyakov, 1993 (identification resource)